2004 3.8 Impala HVAC System Failure

5

Asked by Nov 13, 2015 at 12:46 AM about the 2004 Chevrolet Impala LS

Question type: Maintenance & Repair

I have a 2004 Chevy Impala 3.8 (VIN-K) that is only blowing out cold air on
both passenger and driver side.

When the Temperature control is turned to hot, there is no noise of the
motors switching, thus the car remains stuck in AC/Cool.

Fan Speed Control - Works
Mode Selection(Defrost, upper, lower, etc) - Work

With the research I've done I've come to these points of failure, with
questions...

Blend Door Actuator - Makes sense, but if so, how many do I need to buy?
I can't seem to nail down the correct number (assumption is 2),
additionally, is there a difference between the "drivers side" and
"passenger side" actuator parts?

Air Flap Actuator - AC Delco 15-74122
Can't find any info on this guy, what it really does, or where it's located.  
Could it be my problem, and if so....where is it in the assembly?

HVAC Control Panel -
It should be noted that the lights in my current control panel do not work in
the temperature control area. This is what draws me to this conclusion of
this part possibly being bad.

Any advice would be appreciated.  I would prefer not to spend more money
than I have to, and buy parts that I don't need on this issue; or have to
mess around with a goose chase of taking my dash a part a couple times
to replace different parts.

2 Answers

76,315

I do believe you are on the wright track. The parts store can tell you how many actuators are in the car, and I believe the AC Delco part would be the same. The temp. control unit is easy to take out, check for a bunt bulb.

76,315

Also the parts store would have a picture of the item in question, some times I know what the problem is and just having the part in hand helps locate the one I want to replace. These parts would be under the dash.

Your Answer

Chevrolet Impala Experts

  • #1
    Js08016
    Reputation
    1,960
  • #2
    Tom Demyan
    Reputation
    1,870
  • #3
    Danny Wang
    Reputation
    1,720
View All

Related Models For Sale

Used Chevrolet Malibu
1,065 Great Deals out of 62,286 listings starting at $880
Used Honda Accord
1,102 Great Deals out of 73,579 listings starting at $1,100
Used Chrysler 300
323 Great Deals out of 19,474 listings starting at $900
Used Nissan Maxima
322 Great Deals out of 21,815 listings starting at $1,200
Used Toyota Camry
1,078 Great Deals out of 86,827 listings starting at $800
Used Buick LaCrosse
382 Great Deals out of 17,350 listings starting at $1,500
Used Nissan Altima
1,320 Great Deals out of 77,580 listings starting at $1,695
Used Chevrolet Silverado 1500
2,672 Great Deals out of 174,504 listings starting at $955
Used Chevrolet Tahoe
786 Great Deals out of 42,002 listings starting at $1,987
Used Ford Mustang
587 Great Deals out of 39,483 listings starting at $1,895
Used Ford Taurus
248 Great Deals out of 15,068 listings starting at $1,800

Used Cars For Sale

2018 Chevrolet Impala LS For Sale
1,418 listings starting at $21,585
2017 Chevrolet Impala LS For Sale
15 Great Deals out of 1,253 listings starting at $15,990
2016 Chevrolet Impala LS For Sale
5 Great Deals out of 248 listings starting at $12,950
2015 Chevrolet Impala LS For Sale
242 listings starting at $10,999
2014 Chevrolet Impala LS For Sale
3 Great Deals out of 303 listings starting at $9,700

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.